CN2179308Y

CN2179308Y - Combined bicycle saddle lifting device

Info

Publication number: CN2179308Y
Application number: CN 93244064
Authority: CN
Inventors: 敖爱东
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-11-07
Filing date: 1993-11-07
Publication date: 1994-10-12
Anticipated expiration: 2003-11-07

Abstract

The utility model relates to a combined bicycle saddle lifting device, which is mainly characterized in that a lower end in the back sloping tube of a bicycle frame is provided with springs, the inner part of an upper end is fixed with an inner casing tube which is provided with long strip gaps and pin gaps; a lifting rod with pins is inserted in the inner casing tube, and a fixed cover is tightly pressed on the inner casing tube. When the lifting rod is driven by the saddle to rotate a certain angle, the pins and the pin gaps are separated and combined. When the pins are in the long strip gaps, the lifting rod can slide up and down under the action of pressure bearing of the springs or the saddle. The lifting rod rotates from opposite direction to make the pins enter into the pin gaps and be locked. The device comprises a plurality of bulk parts, which is convenient for using, assembling and disassembling, and the structure is simple.

Description

Combined bicycle saddle lifting device

The utility model relates to a kind of attachments of a bicycle, is a kind of bicycle saddle cushion combined type lifting device.

The bench height of ordinary bicycle is once fixing, and adjustment is got up pretty troublesome, needs instruments such as wrench.And in real life, the height of seat cushion also is that the difference along with the situation of riding has different requirements concerning same individual.Riding in place more the stream of people, that often meet red light, for the safety meter wishes all that generally seat cushion is very low, keeps balance so that pin can support ground; And when broad, safe road is ridden, people wish again seat cushion higher be beneficial to ride fast with laborsaving.In the practical application of bicycle, both of these case alternately occurs in riding.Obviously, the jacking system of ordinary bicycle seat cushion can not satisfy the above-mentioned requirement that bench height is adjusted at any time.

The purpose of this utility model just provides a kind of deficiency that can overcome above-mentioned ordinary bicycle seat cushion jacking system, the lifting bicycle saddle cushion, easy accessibility easily a kind of bicycle saddle cushion combined type lifting device.

The purpose of this utility model is such realization: with the outer tube of cycle frame hypsokinesis inclined tube as device, its two garden pipes by different-diameter are linked to be.The hypomere of this outer tube is the pipeline section of minor diameter, in a baffle plate is arranged, the baffle plate pop-up has a spring; The epimere of outer tube is large diameter pipeline section, in an inner sleeve is arranged.The inner sleeve tube wall has several and is parallel to the rectangular mouthful of pipe axial line, one side each rectangular mouthful all communicates with several lock-joints.Seat cushion lifting bar appearance has several pins that stretches out, make pin aim at rectangular mouthful of inner sleeve after, lifting bar can be inserted in the inner sleeve.A fixed cap is arranged, be threaded joint, cover center has Yi Yuandong.After will covering hole, garden, center and packing into lifting bar, fixed cap is threaded with the big pipeline section mouth of pipe of outer tube.After tightening fixed cap, inner sleeve is fixed, and at this moment, the spring upper end props up the lifting bar bottom.After seat cushion is installed in the lifting bar upper end, make it enter into the lock-joint of inner sleeve by the rotation seat cushion on the pin on the lifting bar.When riding, people's gravity passes to inner sleeve by the pin of seat cushion lifting bar, and it is on the vehicle frame hypsokinesis inclined tube that inner sleeve passes to outer tube again with power.When needing to reduce seat cushion in riding, promote the seat cushion sway, lifting bar pin and inner sleeve lock-joint are broken away from enter rectangular mouthful with femoribus internus.Because people's body weight compressing seat cushion will make lifting bar descend, pin downhill race in rectangular mouthful, spring gradually reduces.When pin slides into lower lock-joint position, promote seat cushion to the normal position with femoribus internus, pin is stuck after just entering lock-joint, and downslide stops.When need rising seat cushion, only need to hand over and do one time with above-mentioned action is counter, and buttocks leaves seat cushion.Under the effect of spring, seat cushion has just raise.When needing dismounting, turn on fixed cap, extract lifting bar, inner sleeve out, go out spring with the hook hook.

The utlity model has following advantageous effect: the bicycle external form is not changed basically, can adjust the bicycle saddle cushion height easily and quickly, simple structure, part is easily changed, easy installation and removal.

Below in conjunction with accompanying drawing the utility model is described.

Fig. 1 is the utility model longitudinal sectional drawing;

Fig. 2 is the utility model cross-sectional view;

Fig. 3 is a utility model inner sleeve block diagram;

Fig. 4 is utility model fixed cap (embodiment an one) drawing;

Fig. 5 is utility model fixed cap (embodiment a two) drawing;

Embodiment:

With reference to accompanying drawing, the outer tube (18) of the device of double as cycle frame hypsokinesis inclined tube is joined by thinner garden pipe (6) and thicker garden pipe (19) and forms.What be in hypomere carefully has a baffle plate (8) in the garden pipe (6), and the baffle plate pop-up has a spring (3).Be inserted with an inner sleeve (2) in the thick garden pipe of the epimere of outer tube (18) (19), have several rectangular mouthful (13) that are parallel to the inner sleeve axial line on the inner sleeve tube wall, each one side of rectangular mouthful communicates with several lock-joints that perforate forms on the inner sleeve tube wall (14).Be fixed with several pins that stretch out (4) on the seat cushion lifting bar (1), to behind pin (4) aligning rectangular mouthful (13) lifting bar (1) can be inserted in the inner sleeve (2), when treating that pin (4) and lock-joint (14) are concordant substantially, A is to the rotation and lifting bar, pin just enters locking in the lock-joint (14), and lifting bar bottom (9) is pressed in the upper end of spring (3).There is Yi Yuandong (17) at fixed cap (5) center, hole, garden (17) aligning lifting bar (1) is enclosed within fixed cap (5) on the lifting bar and with garden pipe (19) upper end screw thread to join, several root cuttings (10) on the fixed cap insert in several rectangular mouthful (13) of inner sleeve, tighten fixed cap (5) and make that inner sleeve (2) is compacted, inner sleeve (2) is fixed.Go up installation seat cushion (7) at lifting bar (1).When lifting bar B direction rotation, pin (4) breaks away from lock-joint (14) and enters into rectangular mouthful (13), and as external force P during greater than spring force F, lifting bar will drive seat cushion (7) decline; When no external force P, under the effect of power F, lifting bar will drive seat cushion (7) and rise.Bench height one determines that to A direction rotary seat pad lifting bar (1), pin locks among just entering lock-joint.The bottom (15) of lock-joint (14) is recessed, and when power P＞F, pin is blocked and can't move by recessed portion, and seat cushion (7) just can turn yet.The blank area (16) of fixed cap (5) is if any negative thread (11), and then cutting (10) separates with blank area (16); The blank area (16) of fixed cap (5) is if any outside thread (12), and then cutting (10) is stretched out from blank area.

Claims

1, a kind of bicycle saddle cushion combined type lifting device is made up of lifting bar (1), inner sleeve (2), spring (3), fixed cap (5), the double device outer tube (18) of doing cycle frame hypsokinesis inclined tube, it is characterized in that outer tube (18) is joined by thinner garden pipe (6) and thicker garden pipe (19) forms, the managing in (6) than thin garden of hypomere that is in device outer tube (18) has a baffle plate (8), and the baffle plate pop-up has a spring (3); The epimere that is in device outer tube (18) slightly is inserted with an inner sleeve (2) in the garden pipe (19); Have several parallel rectangular mouthful (13) of putting down in inner sleeve pipe axial line on the inner sleeve tube wall, each one side of rectangular mouthful communicates with several lock-joints that perforate forms on the inner sleeve tube wall (14); Be fixed with several pins that stretch out (4) on the seat cushion lifting bar (1), lifting bar (1) is inserted in the inner sleeve (2); Lifting bar bottom (9) is pressed in the upper end of spring (3); Fixed cap (5) cover center has Yi Yuandong (17), and fixed cap (5) is threaded joint (16), and fixed cap (3) compresses inner sleeve (2) after joining with garden pipe (19) mouth of pipe screw thread, and lifting bar (1) passes from hole, garden, fixed cap center (17).

2, a kind of bicycle saddle cushion combined type lifting device according to claim 1 is characterized in that fixed cap joint (16) has negative thread (11).

3, a kind of bicycle saddle cushion combined type lifting device according to claim 1 is characterized in that fixed cap joint (16) has outside thread (12).

4, according to claim 1,2,3 described a kind of bicycle saddle cushion combined type lifting devices, it is characterized in that the bottom (15) of lock-joint (14) is recessed, fixed cap (5) is connected with several cutting (10).